inlet gasket

[macc nova]

which gasket should i use if im puttin on a 1.4 inlet onto a 1.2? Also i have a slight air leak on the lnlet so could this cause my coolant system to be over pressurizing? Because ive had to fill it up everyday for the last three days?

[Adam]

What 1.2 is it? Carb?

A 1.4 inlet on a 1.2carb head will be MEGA restrictive.

[macc nova]

yeah its a carb! what do you mean restrictive?

[macc nova]

the only reason i changed the inlet is so that the weber i bought will fit properly!

[Adam]

Its mega restrictive because the 1.4 inlet has tiny square runners and ports, whereas the 1.2/1.3 inlet has bigger runners and much larger ports.

You need a 1.3 inlet as that has the same shape ports as your 1200 carb head.

[macc nova]

will this therefore cure my air leak? as i presume the 1.2 gasket wouldnt be as snug as the 1.4 one? And what about the coolant system? cheers

[Adam]

Doubt it would cure the airleak, are the manifold studs fully tightened?

What inlet gasket are you using?

Where is the air leak? Near the inlet coolant gallery?

[macc nova]

im using a 1.2 gasket, its on the 2nd cylinder so its quite near the coolant gallery! Yeah there fully tightened. i'll speak to me mate about gettin his old 1.3 inlet tomorrow.

[Adam]

The coolant gallery is over to the side of cylinder one...

Maybe the gasket is leaking, explaining the coolant loss.

[macc nova]

cheers im gonna change the inlet